Daily Practice · 13+ Common Entrance

Daily Practice - 13+ Common Entrance

15th April 1998

5 questions · Years 7-8 · 744 questions in this band

1
Biology: Cells, Microscopy and Genetics
A cell has a real width of 0.02 mm. In a drawing, the same cell is shown 4 mm wide. Calculate the magnification of the drawing.
2
Biology: Respiration, Digestion and Gas Exchange
Name the enzyme that digests starch, and state the product it is broken down into.
3
Chemistry: Materials
The density of olive oil is 0.92 g/cm^3. State, with a reason, whether olive oil would float or sink in water (density 1.0 g/cm^3).
4
Chemistry: Acids, Reactions and the Periodic Table
Name the acid that produces nitrate salts.
5
Chemistry: The Periodic Table and Separating Mixtures
State whether reactivity increases or decreases going down Group 1, the alkali metals.

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